Final answer:
Frotteurism involves touching or rubbing against a nonconsenting person for sexual arousal. It is considered a paraphilic disorder and is illegal in most jurisdictions.
Step-by-step explanation:
Frotteurism involves touching or rubbing against a nonconsenting person for the purpose of sexual arousal.
It is considered a paraphilic disorder where the individual derives sexual pleasure from this behavior.
The act is nonconsensual, meaning the person being touched or rubbed against has not given their consent. Frotteurism is a criminal offense and is considered inappropriate and illegal in most jurisdictions.